Ash-ejector.



Patented Dec. 23, |902. L. HOCHSTEIN.

ASH EJECTOR.

(Application led May 18, 1902.)

2 Sheets-$heet I.

l l n (No Model.)

No. 7l6,4l8. Patented Dec. 23, 1902.

, L. HUCHSTEIN.

ASH EJECTOR.

(Application led May 13, 1902.)

(No Model.) 2 Sheets-Sheet 2.

lliniTnn STATES PATENT GFFICE.

LUDWIG HOCHSTEIN, OF DIETRICHSDORF, GERMANY.

ASH-EJECTOR.

SPECIFICATION forming part of Letters Patent No. 716,418, dated December23, 1902.

Application filed May 13, 1902 Serial No. 107,110. (No model.)

To all whom t may concern:

Be it known that I, LUGWIG IfIooHs'rnIN, a subject of the Emperor ofGermany, whose post-office address is Katherinenstrasse 14,Dietrichsdorf, near Kiel, Germany, have invented certain new and usefulImprovements in or Connected with Ash-Ejectors; and I do hereby declarethe following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

In connection with ash-ejectors as hitherto employed for dischargingashes from ships and the like it has been found that inconveniencesarise in tending them, as jolting and shaking occur in the pressure-pipewhen the ash-ejector is started, and in consequence of the slightpressure at starting the ash-ejector fails to act when the nozzle-pipeis opened. Moreover,several persons are always required to look afterthe ejector.

By means of the apparatus that forms the object of the present inventionthe working is simplified and the above-named difficulties are obviated.The apparatus enables the pump to work continuously independently of theash-ejector being in action or not. The pump-piping is divided into twoparts by the introduction therein of suitable reversing-organs, so thatthe one pipe leads to the ashejector, the other to the outside or someother suitable place. This reversing action may be effected either bythe direct or indirect movement of the reversing-organs. Contrivancesfor indirect reversing are illustrated in Figures 1 to 6 and for directreversing in Figs. 7 to l0. Compared with those for indirect reversingthe direct reversing contrivances have the disadvantage of involving alarge expenditure of power. This kind of apparatus is suitably composedof avalve-cone body furnished with double Valve-cones, one of whichcones closes the nozzle-pipe leading to the ashejector, the otherclosing asecond nozzle-pipe, leading to the outside. The reversing ofthese Valve-cones can be effected by the actual valve-body being formedas a differential piston or as a single piston, the water under from oneanother, in which case the one organ is applied to the ash-ejector, theother to the pump or at some other spot. The principal effect of such adevice is that after the ejector-nozzle pipe has been opened thepressure of Water necessary for the working can at once enter; further,that after the pressurepump has been started all further attention isrendered unnecessary and stoppage or overrunning of the pump andconsequent jolting and shaking in the pressure-pipe itself avoided.

In the accompanying drawings, Figs. Ito G represent indirect-switchingdevices, Figs. 1 and 2 the construction of the valve-cone body as adifferential piston, Fig. l showing the smaller piston shut off from thedischargingchamber and receiving the water under pressure throughspecial openings,whereas in Fig. 2 the said piston is shown as beingdirectly in the discharging-chamber. Fig. 3 illustrates the employmentof an ordinary piston, the water under pressure being conveyed to eachside of the piston by special conduits. Figs. 4l, 5, and 6, which relateto Figs. I, 2, and 3, represent different positions of thedistribution-cock. Fig. 7 shows the employment of two valves, Figs. S tol0 the employment of a three-way cock.

The arrangement of the reversing-organs is as follows: The nozzle-pipeb, Fig. I, leads to'the ash-ejector, the nozzle-pipe c to thedischarge-pipe. Both are closed by the cones 7c and z', connected withthe differential piston s r. The valve-cone body is hollow, and itsinterior communicates, by holes d andf,with the supply-pipe e or chamberZ. The dierential piston, Fig. I, consists of the larger piston s andthe smaller piston r, to the latter of which the water under pressure isconveyed through openings g. For reversing purposes the cock a isemployed. If the cock be turned into the position indicated in Fig. l,the water flows from the chamber e through the passage 1o and the cock aover the larger piston s of the differential piston, and in consequenceof the considerable difference of surface between the surface of thelarger piston and that of the smaller piston causes the differentialpiston s r to descend, the cone c being removed from the nozzle-pipeb--that is to say, opens the pipe and closes the nozzle-pipe IOO c. Theconsequence is that the stream of water from e flows to the ash-ejectorand the work of the ejector begins. If the cock d now be turned to theextent of ninety degrees, Fig. 4l, the surface of the piston s will bebrought into communication with the external atmosphere-that is, will berelieved of pressure while the smaller ypiston r, which is heldcontinuously under water-pressure by the Water reaching it throughopenings CZ g, must now move in opposition to the differential piston,so that the nozzle-pipe b is closed. The water under pressure will nowpass through df Z and the nozzle-pipe c to the discharge-pipe as long asthe cock d is closed, whence it is clear that the pressure-pump remainscontinuously in action quite independently of the ash-ejector-that is,it requires no special attention.

The arrangement illustrated in Fig. 2 differs from that shown in Fig. lonly by the circumstance that the smaller differential piston r projectsdirectly into the discharge-chamber Z. The action is the same as inFig. 1. The second position of the cock a is shown in Fig. 5.

In the arrangement with a single piston (shown in Fig. 3) the Waterunder pressure is conveyed to the dierent surfaces of the piston onlythrough the openings cZf, and in this case the cock d is furnished withtwo ways, one of which eects a communication of the pressure-chamber Zwith the one side of the piston and the other a communication of theopposite side of the piston with the atmosphere. The cock @,as shown inFig. 3, is in the position in which the top of the piston is incommunication with the atmosphere, the bottom with the pressure-chamberZ. The action will at once be seen from the drawing. The upper and lowersurfaces of the piston .are alike.

According to Fig. 7, two valves QJ are inserted in the pressure-pipe ofthe pump,which must be simultaneously operated, so that the one isopened, Whereas the other is closed. Quick-closing valves are desirable,but instead of these cocks may be put in. In this case also the pipes tothe ash-ejector and to the outside are alternately opened or closed.

In Fig. 8 the pressure-pipe of the pump is provided with an ordinarythree-Way cock w, and when the plug is in the position shown in Fig. 9the water is conveyed to the ashejector, While when the plug is in theposition shown in Fig. 10 it is conveyed to the outside.

In the single-piston arrangement shown in Fig. 3 the Water underpressure is conveyed partly through h and partly to the differentpiston-surfaces only through the openings df, and in this case the cockd is furnished with tWo Ways, of which the one, t, forms thecommunication of the pressure-chamber Z With the one side of the piston,the other,p, the cornmunication of the opposite side of the piston withthe atmosphere. In Fig. 3 the cock d is in the position in which the topof the piston is in communication with the atmosphere, the bottom withthe pressure-chamber Z. In Fig. 6 the position of the'cock d isreversed. It is obvious that the water under pressure flowing through df collects in the chamber Z, flows partly away through Zz, and partiallyexerts pressure on the lower or upper surface of the piston o, accordingto the position of the cock a. The piston-surfaces are alike above andbelow.

The chief feature of the invention consists in the avoidance of thejoltings and shakings which formerly occurred and in the ability to workthe whole apparatus with only a single attendant.

What I claim, and desire to secure by Letters Patent, is-

l. An apparatus for permitting the pumps of ash-ejectors to be kept incontinuous action comprising in combination: two valve-seats; avalve-cone adapted to close each valve-seat; a tube. connecting saidvalve-cones and having openings near each valve-cone; a pistonbodymounted on said tube; a chamber inclosing said piston-body; a chamberinclosing each end of said tube; a pressure-main connected with one ofthe chambers surrounding the ends of said tube; channels connecting onesurface of said piston with the chamber connected with saidpressure-main and with the atmosphere; and a cock adapted to open andclose said channels according to desire; substantially as set forth.

2. An apparatus for permitting the pumps of ash-ejectors to be kept incontinuous action, comprising in combination: a pressure-main; twovalve-seats in communication With said pressure-main; valve-bodiesadapted to close said valve -seats; and means to simultaneously shut onevalve when the other is opened; substantially as, and for the purpose,set forth.

3. An apparatus for permitting the pumps of ash-ejectors to be kept incontinuous action, comprising in combination: two valve-seats; avalve-cone adapted to close each valve-seat; a tube connecting saidvalve-cones and having openings near the middle and approximate to saidvalve-cones; a differential piston mounted on said tube with the smallerpiston-surface adjacent to the openings near the middle of said tube; achamber inclosing said piston-body; a chamber inclosing each end of saidtube; a pressure-main connected with one of said chambers surroundingthe ends of said tube; channels connecting one surface of said pistonwith the chamber connected with said pressure-main and with theatmosphere; and a cock adapted to control said channels; substantiallyas, and for the purpose, set forth.

4. An apparatus for permitting the pumps of ash-ejectors to be kept incontinuous action, comprising in combination: a chamber connected to thepressure-main of the pump; a valve in said chamber adapted to close theejector-opening therein; a conduit commu- IOO IIO

nicang with said chamber; a second valve In testimony whereof I affix mysignature adapted to close said conduit, means to keep in presence oftwo Witnesses. said first valve normally closed and said second valvenormally open under the action of LUDWIG HOCHSTMN the Water-pressure toopen said first; valve Witnesses: and simultaneously close said secondValve JULIUS RPKE,

when desired; substantially as set forth. OTTO LAU.

